Improvement in saw-mills



W. T. WAYNE.

Saw-Mill.

Patented July 13,1875.

WITNESSES ATTORNEYS.

UNITE TATES WILLIAM .r. WAYNE, or OONYNGHAM, PENNSYLVANIA.

IMPROVEMENT IN SAW-MILLS.

Specification forming part of Letters Patent No. 165,52 l, dated July13, 1875 application filed May 22,1875.

To all whom it may concern:

Be it known that I, WILLIAM T. WAYNE, of Gonyngh am, in the county ofLuzerne and State of Pennsylvania, have invented a new and ImprovedGuard Attachment to Saw- Mills, of which the following isa specificationIn the accompanying drawing, Figure 1 represents a side elevation, andFig. 2 a vertical transverse section on the line 0 c, Fig. 1, of myimproved guard attachment to sawmills.

Similar letters of reference indicate correspondin g parts.

The invention relates to apparatus applied to the bed-frame of asaw-mill for the purpose of bearingagainst or holding the log whilebeing cut.

The-invention consists of a vertical guideroller, turning in a slidingstandard-frame, adjusted by rack, sector-pinion, and lever mechanism.The lever is locked by a springlatch to an arc-shaped rack, and adjustedwith the sector-pinion to the exact position of a horizontalsupporting'roller by set-screws of the supporting-hangers.

In the drawing, A represents the guideroller of my saw-mill attachment,which revolves vertically in bearin gs of standard-frame B, that slidesby its flanged base in a supporting-frame, B. Frame B is attached byperforated bottom flanges and fastening-bolts to the bed-frame of themill, back and sidewise of the saw, to bear against the side of the log,and hold the cut-ofl' board in position to prevent its springing, and,consequently, the uneven cutting of the saw. A horizontalsupporting-roller, G, is applied to a shaft turning in bearings of frameB, and placed at right angle to the vertical guide-roller, to bear onthe bottom part of the log and carry it, in connection with vthe dogsand vertical guideroller, in regular and steady position in for warddirection. The under side of standard B is provided with rackteeth, intowhich a sector-shaped pinion, G, that is keyed to a lateral shaft, D,turningin hangers, D, at the lower side of frame B, gears, for movingthe roller-frame forward or backward toward the log, according to thethickness of boards to be out. A hand-lever, E, is keyed to the shaft D,and secured to an arc-shaped guiderack, F, by a spring-latch, E, of thelever. The roller may by the lever be quickly set .into the exactposition against the log, and

facilitates the rapid and even working of the saw to a considerabledegree. For the purpose of adjusting the roller more minutely previousto its being moved by the lever, so as to assume its exact position inrelation to the line of saw, the shaft-hangers D may be set by means ofscrews to, the bolts by which the hangers are attached being movable inslots of the supporting-frame B. Rack F is also adjustable by means ofslots and setscrews 1), as shown in Fig. l, to be accurately setconcentrically to the altered position of the center shaft, and intocorrect position for the working of the operating-lever.

Having thus described my invention, I claim as new and desire to secureby Letters Patcut-- The roller-carrying frame, having bottom .rack, incombination with swinging sectorpinion, turning in adjustable hangers,an operating hand-lever with spring-latch, and an adjustable arc-shapedguide-rack, substau' tially as and for the purpose set forth.

WILLIAM T. WAYNE. Witnesses:

U. BAOHMAN, J OHN M. KNOX.

